Channel-opening machine



J. E. JACKSON.

CHANNEL OPENING MACHINE.

APPLICATION FILED APR. 5, 1920.

Patented Feb. 21, 1922".

-V.UNITED STATES PATENT, OFFICE.

JAMES E. JAGKSON, OF LYNN, MASSACHUSETTS, ASSIGNOR r0 UNITED SHOE Macaw- ERY oonronarron, or ra'rnnson; NEW JEnsEY, A CORPORATION or NEW JERSEY.

CHANNEL-OPENING MACHINE. 7

Application filed April 5,

To all whom it mag concern: Y I

Be it known that I, JAMEs E. JAoKsoN, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain In1- provements in Channel-Opening Machlnes, of which the following description, in connection with the accompanying drawings, 1s

a specification, like reference characters on the drawings indicating like parts in the several figures. t

This invention relates to channel opening machines, and more particularly to machines for turning lips of soles prior to their attachment to boots or shoes.

' It is common in the manufacture of Mo- Kay shoes to use channel opening or lip turning machines by which the channel 11p is turned over by a wiper rotating in ahor1- Zontal plane and is pressed down upon the sole by a stationary presser foot arranged at the rear of the wiper. The sole is advanced against these lip turning devices by a feed wheel upon the toothed edge of which it is supported at its margin, the feed wheel being yieldingly pressed upwardly toward said devices.

It is an object of the present invention to provide improved work feeding means applicable to such machines, and of such a character as to adapt the machines to operate more effectively upon outsoles to which a metal shank stiffener has previously been attached. Such soles cannot advantageously be handled by the machines heretofore used for this purpose, since the metal shank sue; ener interferes with the feed wheel of the machine.

A feature of the invention lies in the provision in such a machine, of a work feeding wheel having a work engaging edge so narrow as to pass between the metal shank stlffener and the edge of the sole to be operated upon, the feed wheel preferably being also provided with a portion concave in radial section so as to avoid damage or excessive friction when, as occasionally happens, the unsupported part of the body of the sole operated upon is displaced downwardly somewhat, the edge of the concave portion remote from the work feeding edge never-' theless positively limiting such downward displacement.

A further feature of the invention lies in Specification of Letters Patent. Patent d Feb 21 1922 1920. Serial No. 371,310.

the provision of a work support adjacent to the feed wheel of such a machine, the work support being arranged with its work engagin g portion extending in the direction of the width of the sole operated upon, that is, at right angles to the plane of rotation of the feed wheel, so as to prevent undesired] downward displacement of the edge of the sole. This work support may advantageously be arranged for movement with the feed wheel towards and from the work. 7

Other features of the invention will be hereafter described, and pointed out in the appended claims.

In the accompanying drawings,

Fig. '1 is a side elevation with certain parts broken away and in section showing the invention as applied to a channel opening ma chine of the type disclosed in U. S. Letters Patent No. 1,030,630, granted on an application filed June25, 1912 in the name of Henry the channel flap to be operated upon. Co-

operating with the wiper and acting subsequently theretoto press the lip closely into engagement with the sole is a stationary presser foot 14. A channel gage 16 is proided to enter the channel and limit the extent to which a sole may be inserted beneath the wiper 10. It will be understood that the wiper, presser foot and the channel gage are well known in the art and a further detailed description thereof is for that reason not herein given. I

A feed wheel for presenting the: work to the channel opening means is indicated generally at 20. This wheel is mounted upon a shaft 22 which is somewhat inclined with respect to the operative plane of the wiper and is journaled in a suitable bearing in a I sliding block 24 movable in a vertical uide-' tension 32 to which is attached a rod 34.

Through tension exerted on this rod the sliding block may be moved downward against the action of spring 30 so as to lower the feed wheel from the wiper for the c0nvenient insertion of the work at the commencement of a channel opening operation.

The feed wheel 20, as shown, consists of a hollow hub 36 provided with a flange 88, the latter supporting a peripherally toothed disk to of a somewhat greater diameter than the flange 38. Arranged adjacent to the disk 40 on the side thereof remote from the flange 38, is a member 42 having a portion thereof adjacent the disk 40 concave in radial sec tion, as indicated at aa, and having the portion remote from the disk L0 in the form of a cone of but little inclination and approximating to a cylinder as shown at 46. These parts of the feed wheel are keyed to the hollow hub 86 as indicated at as and are clamped thereto by a hub 50 provided with a flange 52 overlying the member 42 and provided with a screw 54 threaded into; shaft 22. @0- operating with the feed wheel to properly present the work to the wiper and presser foot, is a work support 56 having work engaging portion, as indicated in Fig. 2, concentric with the feed wheel and "carried by the extension 82 of the slide block 2% for movement towards and from the wiper with the feed wheel. This work support is so arranged that a cross section thereof taken through the axes of rotation of the wiper and of the feed wheel is parallel to the axis of rotation of the feed wheel and, accordingly, the work support lies at that inclina tion to the operative plane of the wiper which the sole operated upon naturally'tends to assume.

(lo-operating with the feed wheel 20 and the work support 56 is an edge gage shown as a conical roll 58 idly engaging the edge of the work and adjustably mounted with respect thereto, as by a slide 60 carried by a slideway 62 and clamped therein by a screw 64. As is apparent from F ig. 1, the work engaging element of this cone is at right an gles tothe axis of rotation of the feed wheel 20, the work support 56 and the edge gage 58 being so arranged as effectively to support the edge of a sole to be operated upon even though that edge be quite thin as, for instance, if it is beveled, and to prevent downward turning thereof or any other damage thereto. It should also be observed that the peripherally toothed disk 40 is of such a width that a sole having a metal shank attached thereto may be fed tothe channel opening elements without interference by the metal shank. Moreover, if, as sometimes happens, the outer portion of the sole be displaced downwardly the metal shank will come into contact only with the portion 46 of the feedwheel which is so formed as neither to damage or be damaged'by the metal shank but positively to limit the extent of such downward displacement and this without interference with the effective operation ofthe machine, I

In the operationof the machine the wiper 10 and the feed wheel 20 are continuously rotated. The feed wheel is displaced by tension exerted on the rod 341 to permit the insertion of a sole. The sole to be operated upon is placed in the machine so that the channel gage 16 He's in the channel beneath the channel lip and with its marginal portion supported by the work support 56 and its edge in contact with the roll 58. As the sole is advanced againstthe rotary wiper and the presser foot the wiper exerts a rubbing action on the edge of the channel lip, raises it, and bends it over and down upon the sole, thepresser foot actingsubseqnently in the usual manner. hen the sole, open ated upon is provided with a metal shank, the teeth 40 of the feed wheel will pass adjacent to the edge of the shank but without contact therewith and at all times the edge of the sole is effectively supported and protected from damage, as previously described. Since the work support is carried by the guide block 24 which also carries the feed wheel any movement of the latter towards or from the wiper will result in a similar movement of the work support so that the edge portion of the sole is at all times supported in the same manner and since this movement is at right angles to the operative plane of the wiper, the sole will at all times be presented thereto at the same inclination irrespective of the actualposition of the feed wheel.

In the accompanying claims, the term cone as applied to the part 46, is intended to be-taken in a sense broad enough to in-v clude a cylinder which, of course, is the limitilng form of a cone.

aving described my invention, what I claim as n'ew anddesire to secure by Letters Patent of the United States "is: p

1. m'achinefor turning the channel lips of soles having, in combination, a rotary wiper, a feedw heel having its axis inclined with respect to the operative plane of said wiper, an edge gage consisting of a roll with its work engaglng 'el'ement at right angles to the axis of rotation of saidufeed wheel, and a work support provided with a "work engaging surface between the feed wheel and the edge gage and perpendicular to the plane-of the latter.

2. A machine for turning the channel lips of soles having, in combination, a wiper, a

feed wheel having its axis inclined withrespect to the operative plane of the wiper, an arcuate work support arranged perpendicular to'the plane of rotation of the feed wheel'and adjacent thereto, and means for guiding said feed wheel and worksupport for movement towards and from said wiper ina path perpendicular to the operative plane thereof.

3. A machine for turning the channel lips of soles having, in combination, a wiper, a feed wheel having its axis inclined with respect to the operative plane of said wiper, a work support adjacent to the work en-. gaging portion of said feed wheel and perpendicular to the plane of rotation thereof, and means to guide said feedwheel and work support for movement towards and from said wiper in a path perpendicular to the operative plane thereof.

4-. A machine for turning the channel lips of soles having, in combination, a wiper, a feed wheel having its axis inclined with respect to the operative plane of said wiper, and a work support having a work engaging surface at right angles to the plane of rotation of said feed wheel.

5. A machine for turning the channel lips of soles having, in combination, a feed wheel having'a work engaging edge and an. outside edge spaced therefrom and of a lesser diameter for limiting downward displacement of a sole supported by the work engaging edge, and an arcuate work support arranged adjacent to said feed wheel below the edge thereof and at right angles to the plane of rotation thereof.

6. A machine for turning the channel lips of soles having, in combination, a rotary wiper and a feed wheel having a narrow edge to engage the lower surface of a sole and a second narrow edge of lesser diameter adjacent thereto on the side remote from the edge of the work to be operated upon, for limiting downward displacement of the work.

7. A machine for turning the channel lips of soles having, in combination, a wiper arranged for rotation about a substantially vertical axis and a feed wheel having a narrow edge to engage the lower side of the work and having a second narrow edge of lesser diameter adjacent thereto on the side remote from the edge of the work to be operated upon for limiting downward displacement of the work, said feed wheel being arranged for rotation about an axis inclined with respect to the operative plane of said wiper.

8. In a machine of the class described, a feed wheel having a narrow work engaging edge, a conical portion of less diameter than that of said work engaging edge, and a cutout portion between said conical portion and said work engaging edge, by which construction the work-engaging edge will support the work while the conical portion will limit downward displacement of the work.

9. A machine of the class described com-.

prising a feed wheel having a toothed edge to engage and support the lower side of the work, a conical portion removed therefrom to limit downward displacement of the work, and a cut-out portion between said conical portion and said toothed edge to avoid engaging the work.

In testimony whereof I have signed my name to this specification.

JAMES E. JACKSON. 

